I was given 13 hens and 1 rooI was given 13 hens and 1 roo ..ive had them a couple months now acouple of them look like they are in a molting stage but backs are bare it doesnt look like anything is growing back ..they have been like this since we got them.i think they were raised on fruit and vegetables..i have completely changed their diet to chicken feed...they have a good nesting coop and a 20`x20` open rang to run around...im new to this and im worried could this be an infection or something ..all of the chickens are really mellow so theres no pecking....please help